US1142820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming projections.
Assignee: Individual
•
Filing: 1912-08-17
•
Granted: 1915-06-15
•
Expires: 1932-08-17
Abstract
No abstract record available.
Inventors
- 👤 George C Knauff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; Y; Y10; Y10S; Y10S29/00; Y10S29/035; Y10S411/00; Y10S411/924; Y10S411/947; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/108; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49908; Y10T29/49936; Y10T403/00; Y10T403/49; Y10T403/4966
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1918-06-14 | 1918-12-14 | 1919-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-06-14 | 1922-12-14 | 1923-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-06-14 | 1926-12-14 | 1927-06-15 | $7700.00 | Window Closed / Lapsed |